Abstract:Appropriate scale of land operation is the important method to improve modern agricultural productivity and agricultural competitiveness.Furthermore,moderate scale of agricultural land operation can increase per unit area yield as well as households’ income.This paper makes a thorough study on optimum-scale agricultural land operation and analyzes 163 rural households in Jiang-xia district of Wuhan by establishing quadratic regression model.The result shows that the optimum-scale of agricultural land is 1.27 hm2 when the per capita net income of rural household achieves maximum level.